Why are olympic lifters chunky?

Question

Granted, an endomorphic bodytype is predisposed to being good at lifting, but if they have to compete within a weightclass, wouldn't it be to thier benefit to lose some fat and move down in weightclass, the same way wrestlers do?

Answer 1

The muscles bulk up from the caliber of training that they do

Answer 2

Most of them are super lean.  It's definitely to their advantage to be as lean as possible but it's very difficult to gain muscle without gaining fat.  Some just manage to do it better than others.   Wait till you see the mens' over 105 kg class.  They are FAT